Waste and Biomass Valorization

, Volume 10, Issue 11, pp 3447–3456 | Cite as

Computational Design of a Cyclone Furnace for Concentrated Slop Combustion: A Potential Method of Converting Waste to Energy in the Alcohol Industry

  • Tanakorn WongwuttanasatianEmail author
  • Kiatfa Tangchaichit
  • Manita Phasomprayoch
  • Suphaopich Panpokha
Original Paper


In alcohol industries, a by-product called slop is considered as waste and usually results in costly waste management. A method of slop utilization as fuel was proposed. Slop contains a high ash composition so that combustion in a cyclone furnace would be suitable. Firstly, this study examined the combustion temperature of concentrated slop in a cyclone furnace. The experimental and computational results were compared to determine the appropriate amount of supplied air for concentrated slop combustion. The finding demonstrated that experimental and computational results were in same thermal trend. The appropriate amount of air provided for concentrated slop combustion was 100–120% theoretical air. In addition, the physical dimension of cyclone furnace affected to cyclone motion and combustion was investigated. The simulations were set up to determine the optimal diameter to length ratio (D/L) and the minimum diameter of chamber for the concentrated slop combustion. The results showed that the optimal D/L was in a range from 1:1.4 to 1:2.0 and the diameter must be more than 120 cm because such dimensions resulted in a higher average temperature and good cyclone motion in the chamber. The cyclone motion resulted in ash separation onto the furnace wall and it could be melted into liquid slag ensuring a decrease in fly ash particles. In conclusion, it is believed that combustion of concentrated slop, which is the by-product of the alcohol industry, can be an efficient method of converting waste to energy thus leading to a zero waste factory.


Cyclone furnace Concentrated slop Waste to energy Computational fluid dynamics 



The authors gratefully thank the Thai Beverage Energy Co., Ltd. for research sponsorship and concentrated slop. Appreciation is also due to the Center for Alternative Energy Research and Development, Mechanical Engineering Department, Faculty of Engineering, Khon Kaen University for assistant and technical supports.


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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  • Tanakorn Wongwuttanasatian
    • 1
    • 2
    Email author
  • Kiatfa Tangchaichit
    • 1
    • 2
  • Manita Phasomprayoch
    • 2
  • Suphaopich Panpokha
    • 2
  1. 1.Center for Alternative Energy Research and DevelopmentKhon Kaen UniversityKhon KaenThailand
  2. 2.Department of Mechanical Engineering, Faculty of EngineeringKhon Kaen UniversityKhon KaenThailand

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